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The Pale Blue Dot

How the Voyager space probe captured a famous image of Earth as it left the Solar System.

• 9 mins

How meditation changes your brain

In 2002, a landmark study on Buddhist monks showed that meditation can alter the brain.

• 9 mins

Fighting oil pollution with art in Nigeria

"Battle Bus" was a sculpture in memory of Nigerian environmentalist Ken Saro Wiwa

• 9 mins

Saddam Hussein's 'Supergun'

Building the largest gun in the world for Saddam Hussein's Iraq

• 9 mins

Saving Antarctica

A 1980s campaign to preserve Antarctica for science.

• 9 mins

An Antarctic mystery

Human remains were found on a remote island in Antarctica in 1985 but whose were they?

• 9 mins

The first mobile phone call

The American inventor who made the first mobile phone and the first mobile phone call

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The rebel nuns who left their convent behind

A group of Californian nuns left their convent and set up their own community in 1970

• 9 mins

The last smallpox outbreak

Thousands of people died in the world's last major smallpox epidemic in India in 1974.

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Freeing American prisoners from Iran

The diplomacy behind the release of three US citizens who unknowingly hiked into Iran.

• 9 mins

Womenomics in Japan

Japan faces a demographic time-bomb. Could the answer be Womenomics?

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The petrol that was poisoning children

The EU finally banned lead in petrol in 2000 - decades after the US, Canada and Japan.

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Strikers in saris

How South Asian women workers won the support of the British trade unionist movement

• 9 mins

Battling Soviet psychiatric punishment

One man's stand against the psychiatric abuse of political dissidents in the Soviet Union

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The Major and the VW Beetle

How a British army officer saved Hitler's Volkswagen Beetle at the end of World War Two

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The 'Spanish' flu

In 1918 an extremely deadly form of influenza killed millions around the world

• 9 mins

The Ebola virus

The first documented outbreak of the deadly disease occurred in the 1970s in Zaire

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The polio vaccine

Scientists in the US led by Dr Jonas Salk develop an effective vaccine against polio

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The SARS epidemic

How the world battled a deadly respiratory disease in 2003.

• 9 mins

Marburg virus

A deadly new disease infected laboratory workers in a small town in West Germany in 1967.

• 9 mins

The 'I Love You' computer virus

How a virus created by a Filipino college dropout sparked global panic in May 2000

• 9 mins

The fight to make sexual harassment a crime

The story of a landmark ruling for women's rights in the United States.

• 9 mins

Red Hollywood

Former actress Marsha Hunt remembers the anti-Communist witch-hunt of the late 1940s.

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The launch of the Hubble Space Telescope

How NASA put an orbiting observatory into space in 1990.

• 9 mins

The Chinese cure for malaria

How scientists in the 1970s discovered an anti-malarial drug using a traditional remedy.

• 9 mins

Hong Kong's abandoned children

The Chinese babies left on the streets of 1960s Hong Kong in the hope they'd be adopted.

• 9 mins

Sequencing the 1918 influenza virus

Over 50 million people are thought to have died from influenza around the world in 1918

• 9 mins

The Saudi bombardment of Yemen

In March 2015 Saudi Arabia and its allies began an intense aerial bombardment of Yemen

• 9 mins

The Cheonan sinking

On March 26th 2010 a South Korean naval ship sank after an explosion - 48 sailors died

• 9 mins

The AIDS Memorial Quilt

In 1985 activists made a giant quilt to commemorate those killed by AIDS in the USA.

• 9 mins